December weather forecastLake Zurich, IL
December
Weather in December
The first month of the winter, December, is still a cold month in Lake Zurich, Illinois, with an average temperature varying between 33.4°F (0.8°C) and 23.9°F (-4.5°C).Temperature
With December's onset, the weather shows a temperature decrease, transitioning from a frosty 45.1°F (7.3°C) in November to a wintry 33.4°F (0.8°C). An average minimum temperature of 23.9°F (-4.5°C) marks the month of December.Humidity
In December, the average relative humidity in Lake Zurich is 81%.Rainfall
In December, the rain falls for 8.8 days. Throughout December, 1.65" (42mm) of precipitation is accumulated. In Lake Zurich, during the entire year, the rain falls for 163.1 days and collects up to 32.24" (819mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Lake Zurich, Illinois, in December, during 11.7 snowfall days, 3.46" (88mm) of snow is typically accumulated. Throughout the year, there are 55.5 snowfall days, and 22.95" (583mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Lake Zurich, Illinois.On the first day of December in Lake Zurich, sunrise is at 7:02 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:30 pm CST.
Sunshine
The average sunshine in December in Lake Zurich is 4h.UV index
The months with the lowest UV index in Lake Zurich, Illinois, are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high UV index of 1 in December translates into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Enhance your sun protection with tightly woven, yet airy clothing. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Lake Zurich, IL
- Average high temperature in December: 33.4°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in December: 23.9°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.3°F).
Average pressure in December
Lake Zurich, IL
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Lake Zurich, IL
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in December
Lake Zurich, IL
- Average humidity in December: 81%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Lake Zurich, IL
- Average rainfall in December: 1.65"
The wettest month (with the highest rainfall) is June (4.13").
The driest month (with the least rainfall) is November (1.61").
Average rainfall days in December
Lake Zurich, IL
- Average rainfall days in December: 8.8 days
The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in December
Lake Zurich, IL
- Average snowfall in December: 3.46"
The month with the highest snowfall is February (6.22").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Lake Zurich, IL
- Average snowfall days in December: 11.7 days
The month with the highest number of snowfall days is January (15.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lake Zurich, IL
- Average daylight in December: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Lake Zurich, IL
- Average sunshine days in December: 13.9 days
The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is June (8.4 days).
Average UV index in December
Lake Zurich, IL
- Average UV index in December: 1
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Lake Zurich, IL
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July, August and September (Cloud cover 31).
Average visibility in December
Lake Zurich, IL
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
